In T170263#2422378, @murphey wrote:

Here is a pretty simple php script to query the valve master server and also the answer you get. (message.txt)
I get a correct response from valve every time with ALL the servers I'm missing in the DayZ ingame Launcher. (tested the script on several locations all over Europe - same result)

For testing purposes I set up 2 new Servers.
They are missing in the Ingame Launcher but I'm getting the correct data from valve!

Showserver1 5.83.170.13:14001/14000 (Nitrado)
Showserver2 45.142.107.197:27017/2402 (Self-hosted)

Both of them are showing up on the DZSA-Launcher, BattleMetrics, etc.
Its not only me who can't see them ingame, also tested this with several people in Europe.

message.txt166 KBDownload